Alternator question

[Hanover Mopar]

Output from my 3 wire alternator when running about 2500 RPM is 13.5 volts at the alternator but only 12.5 volts at the rear mounted battery.

Do I look at voltage regulator or what direction should I go. Can you test a regulator.

Thanks in advance
Jack

 

[oldbee]

Sounds like voltage drop from dirty connections(anywhere in circuit) or undersized wiring.

 

[Ranger16]

Maybe these will be of some help.
Charging system


Regulator

 

[GTXperience]

Maybe these will be of some help.
Charging system


Regulator

Those are great to watch. Love the old mnfr training vids.

 

[Hanover Mopar]

Same voltage at rear mounted battery as at alternator with engine off so I guess I look at connections for the grinch

 

[Hanover Mopar]

Or just change to 1 wire alternator